I'm guilty of buying too much stuff (gurus love me... except for the ones where I have sense enough to ask for a refund). I, too, have, and I think it's going to be very worthwhile... for non-IM niches. I'm not so sure about the IM topics, because you get a lot of junk from the IM pages on the Web.
I've only done one project with it, but it worked OK. After I clicked the copy-to-clipboard icon, I just opened my favorite editor, TextPad, clicked Paste, and there my new article was! I saved it with a .txt extension, edited it, and saved it again.
The .iaw files are just internal for use.
Lane